gnome-packagekit-session binary package in Ubuntu Xenial s390x

 PackageKit allows performing simple software management tasks over a DBus
 interface e.g. refreshing the cache, updating, installing and removing
 software packages or searching for multimedia codecs and file handlers.
 .
 This package contains a GTK+ GUI for PackageKit transactions, a simple
 repository editor and PackageKit configuration tool and a viewer for
 package installation history.
 It implements the PackageKit session API for GNOME, which allows applications
 to easily install additional software (e.g. extensions), uninstall files and
 perform simple software package status queries.

Source package